Trunion and ball

WV64Signet said

And I don't know if Charlie_S has done this, but I chose to NOT remove the pin when I did the rebuild tore it all down and found a good video showing how to snake the boot on without damage. Replaced the balls and needle bearings as well.

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SSHH don't tell anyone, but I have never replaced the pin. Many years ago, BC (before chevy), I did my first B&T. I could not get the old pin to budge with a 30 ton press. The pin was visibly good, so left it alone. That's what I have done on all of them.